Mold for the manufacture of glass lamps and lamp-founts



(No Model.)

. J. F.'MILLER. MOLD FOR THE MANUFACTURE OF GLASS LAMPS AND LAMP FOUNTS.

ijatqnted Apr. Z2, 1884. v

UNirno Sra'rns JOHN F. MILLER, OF MARTINS FERRY, OHIO.

MOLD FOR THE MANUFACTURE OF GLASS LAMPS AND LAMP-FOUNTS.

SPECIFICATION forming part of Letters Patent No. 297,430, dated April22, 1884.

Application filed December 4, 1883.. (No model.)

To aZZ whom it may concern.

- Be it'known that l, J. F. MILLER, a citizen of the United States,residing at Martins Ferry, in the county of Belmont and State of Ohio,have invented certain new and useful Improvements in Molds for theManufacture of Glass Lamps and Lamp-Founts, of which the following is aspecification, reference being had therein to the accompanying drawings.

My invention relates to the manufacture of glass lamps and lamp-founts,in the upper surface of which is formed an annular groove or depressionof suitable depth for catching such oil as may in filling the lamp beaccidentally spilled onto the bowl, or which may drip down from thewick-tube or burner, so that the oil shall not be liable to run downonto the stem by which the lamp is ordinarily carried, nor onto thetable or stand on which the lamp may be placed.

Referring to the drawings, Figure l is a sectional view of the mold,showing a fount or lamp-bowl formed therein. Fig. 2 is a top view. Fig.3 is a top view of the removable ring. Fig. 4 is a sectional view of thering.

0 represents a section of the ordinary twopart mold, provided with theusual handles, and a cavity formed therein of the desired shape to giveto the body of the article the requisite form.

D is the usual base-plate or stand 011 which the main portion of themold. rests, and is held to said base by the annular tongue a, whichfits into the annular groove 1), formed in the section 0. The usualdovetail may, however, be employed for holding the main moldsection tothe base.

A is the top orcover of the mold-section C, and is made in two sections,and hinged to the sections 0 at the back part, so that the sections canbe opened and the newly-formed article taken from the mold. The top orcover A is dovetailed onto the main body of the mold, as shown at E,which serves to hold the two sections firmly together when in positionfor use.

B is a solid removable ring, which is seated in an offset, Ii, in themain mold-section, the up er surface of which is fiat, and on which thetop or cover A rests, to hold the said ring in position. The lowerportion or face of the ring B is of the form shown in Figs. 1 and 4,which, when the article is blown in the mold, forms an annular groove ordepression in the top of the fount or bowl, said groove serving as areceptacle to catch any waste oil which may be spilled on the bowl. Thering B is provided with a handle, F, which projects through a groove cutin the joint of the cap or cover A, so as to allow the handle to resttherein without interfering with the closing of the sections of the capor cover A. It will be noticed that the ring B is not secured to themold at any point, but is removable there from, and when so removedafter the article has been formed in the mold permits the mold-sectionsto be opened out and the article to be removed therefrom withoutliability to break or distort the article.

The operation of my device is as follows:

The mold-sections 0 being closed onto the base D, the ring B is thenplaced in position in the seat b. The bulb of glass on the blowpipe isthen introduced into the mold-cavity through the center of the ring Band the top sections closed by an attendant. The blowing operation isthen continued until the article is formed. \Vhen the article has cooledsufficiently, the tops or sections of A are swung back out of the way,the ring B removed, and the main sections of the mold opened, so thatthe newly-formed article can be removed therefrom. article has plaintapering sides, which will permit it to be lifted vertically out of themold, the main mold-section will be made in one piecei. 6., withoutbeing hinged togetherin sections.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, 1s

1. A mold for the manufacture of lamp founts or bowls, provided with asolid removable ring located beneath the folding or hinged top of themold, said ring being adapted to form an annular depression or groove inthe top of the fount or bowl, as set forth.

2. A mold for the manufacture of lamp In cases where the i founts orbowls, provided with a recess in its In testimony whereof I atfix mysignature in top to receive a solid removable ring, and a presence oftwo witnesses.

hin ed cap or cover adapted to hold said rin in fiosition, as set forth.a JOHN P" 3. In a glass mold, the base D and mold- Vitnesses:

sections 0, provided with an annular offset, A. WV. KERR,

b, in combination with a removable ring, 13, WV. M. LUPTON. and hingedcap or cover A, as set forth

